-infile=src/org/altusmetrum/AltosDroid/BuildInfo.java.in
-outfile=src/org/altusmetrum/AltosDroid/BuildInfo.java
+describe=$(git describe --match "$version" --long --always 2>/dev/null || echo '')
+if [ -n "$describe" ]; then
+ branch=$(git branch | sed -ne 's/^\* //p')
+ commitdetails=$(echo $describe | sed -e "s/^$version-//")
+ commitnum=$(echo $commitdetails | cut -s -d- -f1)
+ commithash=$(echo $commitdetails | cut -d- -f2)
+fi
+